GBC StreamPunch Ultra Service Manual page 59

7. Replace the Sensor Cable from Align Home Sensor to header; refer
to Section 7- Wiring.
This clears the fault
Yes- Resume normal operation;
8. Replace the cable from header to Main control board, refer to Section
7- Wiring.
This clears the fault
Yes- Resume normal operation;
9. Do ARP 5.1 to Replace the Main Control Board (PL 6.1).
This clears the fault
Yes- Resume normal operation
No- Escalate to second level
GBC StreamPunch Ultra/Ultra MP
No- Go to Step 8
No- Go to Step 9
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RTPS